Transaction not yet indexed

AMM997CLCByqw8uVpQNdHyT5S3xa3wK6UZ14jhjW59PtT3A7YKmpFfKDJEYYUdTrzvSqKLU1mQXuEcB2gmsd2Zf

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.